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ecto_hooks

1.1.0
2.0.0 1.2.1 1.2.0 1.1.0 1.0.5 1.0.4 1.0.3 1.0.2 1.0.1 1.0.0 retired 0.3.0 0.2.1 0.2.0 0.1.0

Adds callbacks/hooks to Ecto: `after_insert`, `after_update`, `after_delete`, `after_get`, `before_insert`, `before_update`, `before_delete`. Useful for setting virtual fields and centralising logic.

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ecto_hooks lib ecto_hooks middleware before.ex
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lib/ecto_hooks/middleware/before.ex 

defmodule EctoHooks.Middleware.Before do

  @moduledoc "Module containing implementation for all `before_` hooks"



  @behaviour EctoMiddleware



  @impl EctoMiddleware

  def middleware(resource, resolution) when resolution.action in [:insert, :insert!] do

    EctoHooks.before_insert(resource, resolution.action)

  end



  def middleware(resource, resolution) when resolution.action in [:update, :update!] do

    EctoHooks.before_update(resource, resolution.action)

  end



  def middleware(resource, resolution) when resolution.action in [:delete, :delete!] do

    EctoHooks.before_delete(resource, resolution.action)

  end



  def middleware(resource, resolution)

      when resolution.action in [:insert_or_update, :insert_or_update!] and

             resource.data.__meta__.state == :loaded do

    EctoHooks.before_update(resource, resolution.action)

  end



  def middleware(resource, resolution)

      when resolution.action in [:insert_or_update, :insert_or_update!] and

             resource.data.__meta__.state == :built do

    EctoHooks.before_insert(resource, resolution.action)

  end



  def middleware(resource, _resolution) do

    resource

  end

end